{"id":"CVE-2026-46403","revision":"f87fb1e60fa04e27bcb1d34637cc7b0d","records":[{"revision":"f87fb1e60fa04e27bcb1d34637cc7b0d","observedAt":"2026-10-25T12:17:14.897+00:00","statement":{"source":"nvd","id":"CVE-2026-46403","aliases":[],"title":"Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, KVM exposes `ExecuteReadOnlyWithTypedArguments` as a read-only execution mechanism. The hook saves the previous read-only state, sets `runtime.SetReadOnl…","description":"Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, KVM exposes `ExecuteReadOnlyWithTypedArguments` as a read-only execution mechanism. The hook saves the previous read-only state, sets `runtime.SetReadOnly(true)`, executes the destination context, and then restores the previous read-only state. However, the indirect contract delete and upgrade paths do not reject execution when `runtime.ReadOnly()` is true. As a result, a contract reached through read-only execution can call the production delete hook for a target contract it owns. The delete path appends the target address to `vmOutput.DeletedAccounts`, the output context merges `DeletedAccounts` into the caller output, and the smart contract processor later processes the VM output by deleting accounts listed in that field. The root cause is that read-only mode is applied as runtime state, but not enforced by the state-changing delete and upgrade host-core paths. This breaks the expected isolation boundary for workflows that rely on read-only calls to inspect another contract without allowing that callee to produce state-changing VM output. The issue is fixed in v1.7.17. Contract delete and upgrade host-core paths now reject execution when `runtime.ReadOnly()` is true. The invariant is regression-tested for delete, upgrade, storage writes, value transfers, and any VM output field that can later mutate chain state.","state":0,"publishedAt":"2026-07-21T20:17:01.067+00:00","modifiedAt":"2026-10-24T19:10:00.127+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/klever-io/klever-go/commit/333f6ec910906e227705fc5767dc897d8fbfc862","https://github.com/klever-io/klever-go/commit/68b94a40824fac2d848a4ded6eb7c91ada6ce9ef","https://github.com/klever-io/klever-go/security/advisories/GHSA-jc6w-wmfc-fh33"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-46403","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-693"],"productCriteria":[],"sourceDates":{"published":"2026-07-21T20:17:01.067","lastModified":"2026-10-24T19:10:00.127"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-46403","identifiers":["CVE-2026-46403"]},"retained":false,"historicalAffected":[]}],"coverage":[]}